32 



are regularly nucleated ; and hence Mr. Gulliver's two great sections 

 of Vertebrates into Pyrenaemata and Apyremaemata. A wish was 

 expressed that Mr. Hammond would continue his observations, 

 extending them to mature fish, as well as to tadpoles and adult 

 Batrachians. 



The Bhjlorough Tick. — Concerning this parasite, which is 

 described and figured in two plates and some woodcuts, in the Feb- 

 ruary part of the " Proceedings of the Quckett Microscopical Club," 

 and in " Science Gossip" for May, by Mr. C. F. George, M.R.C.S., 

 Colonel Horsley communicated a note from Mr. Gulliver. Of the 

 specimens sent by Mr. George to Mr. Fullagar, two had been ex- 

 amined at Oxford, and there pronounced to be identical with the 

 Argas pipistrellfe, a species described by Professor Westwood in the 

 " Proceedings of the Entomological iSociety of London," for the 

 year 1872. And this determination agrees with the intimation in 

 the last Report of the East Kent Society, that the Blyborough Tick 

 might prove to be the parasite of the pipistrelle bat, and is certainly a 

 close ally of the Argas which the Society has ah'cady shewn is pecu- 

 liar in Britain, so far as is yet known, to Canterbury Cathedral, and 

 of which creature a description had been given by Mr. Gulliver, 

 junior, at former meetings, and engravings by Mr. FuUager in 

 " Science Gossip." If the Oxford determination prove correct, the 

 Blyborough Tick can no longer be regarded as peculiar or new, 

 although Mr. George is the discoverer of it in the village church of 

 Blyborough, hear Kirton-in Lindsay, Lincolnshire. 



June 1th, 1877. 



Mr. Rcid, following the descriptions given by Owen and Rymer 

 Jones, gave a lengthened demonstration of the Test and Jaw of the 

 Echinus^from diagrame and specimens preserved in the Canterbury 

 Museum. He directed especial attention to the ossicles combined to 

 form the apparatus, seizing, dividing, and titurating the food of the 

 animal, commonly called the Jaws, and designated by naturalists, 

 from the resemblance to a lantern, mentioned by Aristotle, '^Aris- 

 totle's LantcrnP The structure was made up of forty small bones 

 arranged m fives and tens ; specimens of each of these were exhibited 

 in the preparations exhibited. The rough rigid service of one side 

 of the plates against which the food was said to be rubbed, appearing 

 much like the line of a file was pointed out, and also the remakable 

 form of a tooth edged and pointed, pointed like a chisel at one end 

 and extended at the other in a long fibrous curved elastic strap. Mr. 

 Reid thouglit there was more to be learnt yet about the mechanism 

 by which this instrument was moved, and recommended the subject 

 for further investigation by the members. He suggested that some 

 relation might be found to exist between the lever-bones and these 



